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Last seen: Sep 22, 2026
Its not at all likely that cranking up the flow temperature to reduce the output of the heat pump is an efficient way to operate (unless of course you...
Interesting. It is of course in principle equally valid (although presumably achieved in practice by turning the 'wick' up or down to change LW...
Posted by: @derek-m ↑ The heat pump merely tries to supply sufficient energy to meet the demand. Yes. My view is simple, to think ...
As others have said 2 18kW units sounds like a massive overkill, even allowing for the overstated outputs. Someone suggested 2 16kW Mideas (which hav...
I would guess electronics 25-50W, pump 30-50W each. Fan is probably most of the rest. The electronics won't switch off during setback and there may ...
Presumably fan speed (and thus power drain) varies with compressor speed. I believe you said that your pump speed is constant and thus power consumpt...
I think a lot of people expect gas boilers to heat instantly, witness the prevelance of whacking the thermostat to max because they think this will so...
I think most, if not all, of this is spot on. Both the saving and the comfort are functions of the control strategy during recovery, and most heat pu...
Thanks for the vote of confidence, Im not sure its justified. I think the challenge here is that we are comparing a model in one condition with with...
Are they heating on warm and sunny days, or is this for DHW only, or are they cooling (in which case did the planning consent cover cooling). If its ...
I guess the authorities will say that it's covered by nuisance law which they will saw is robust. If you haven't already done so I would suggest you...
I don't defend mcs, I have gone on record as saying that it should be abolished or at a minimum stripped of its privileged position in planning law. ...
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Degrees of Separation
Latest Posts
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RE: Cooling using an air to water heat pump
I've been doing it, 16-17°C water in the slabs. The e...
By bobflux , 1 hour ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Is there any expected time frame for an update to be ab...
By Singlespeed , 2 hours ago
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RE: Why are ASHP installs so expensive?
Posted by: @springswood I confess to becoming a litt...
By Rob of York , 3 hours ago
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@mrkfm There are some bad installers out there, both ...
By JamesPa , 3 hours ago
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Analysis of the economics of switching to an A2W ASHP compared to other heat sources
This post aims to analyse the economics of installing, ...
By Rob of York , 7 hours ago
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RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
By mrkfm , 22 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Posted by: @ian-s Could always use the money saved o...
By Rob of York , 1 day ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 1 day ago
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The positive reviews keep coming in for Britain's Heat ...
By Mars , 2 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
By Old_Scientist , 2 days ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 3 days ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 3 days ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 3 days ago
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